Suppression Forecast
Issued by NWS Bismarck, ND
Issued by NWS Bismarck, ND
146
FNUS73 KBIS 211223
FWSBIS
Spot Forecast for Roosevelt WPA...USFWS
National Weather Service Bismarck ND
723 AM CDT Mon Apr 21 2025
Forecast is based on ignition time of 1100 CDT on April 21.
If conditions become unrepresentative, contact the National Weather
Service.
.DISCUSSION...
A surface low remains over the central portion of the state resulting
in variable winds and a wind shift later tonight. Winds this morning will
vary out of the southeast to southwest switching out of the west tonight.
Temperatures are forecast to warm into the mid 60s with minimum relative
humidity around 30 percent by this afternoon. Smoke dispersal will remain
poor this morning until the inversion breaks around noon.
Tonight a system will roll through the region brining widespread rain
chances with a 75 percent chance or 0.10 of rain by tomorrow morning.
This system will carry on rain chances through the tomorrow afternoon.
Thunderstorms are possible with this system which could lead to gusty
erratic winds and lightning.
.TODAY...
Sky/weather.........Mostly sunny.
CWR.................0 percent.
Chance of pcpn......10 percent.
Chance of thunder...1 percent.
Max temperature.....Around 65.
Min humidity........30 percent.
Wind (20 ft)........Southeast to southwest winds 10 to 13 mph.
Mixing height.......7800 ft AGL.
Transport winds.....South 10 to 17 mph.
Smoke dispersal.....Poor (15800 knot-ft) this morning
increasing to very good (104700 knot-ft) in the
afternoon increasing to good (99700 knot-ft)
early in the morning increasing to very good
(117500 knot-ft) in the afternoon late in the
afternoon.
TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........49 41 29 30 25 39 42
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0
Chc of pcpn (%).0 0 0 0 0 0 10
Chc of thdr (%).0 0 0 0 0 0 0
Temp............52 56 59 61 63 64 63
RH..............52 45 40 38 35 34 35
20 FT wind dir..S SE SE SE S S S
20 FT wind spd..9 10 12 12 13 13 13
20 FT wind gust.14 15 18 19 19 20 19
Mix hgt (kft)...1.8 3.0 5.3 6.7 7.5 7.8 7.7
Transp wind dir.S S S S S S S
Transp wind spd.10 12 14 15 16 17 15
Dispr kt-ft/1K..16 30 63 87 105 118 100
.TONIGHT...
Sky/weather.........Mostly cloudy. Rain likely in the evening, then
rain overnight.
CWR.................0 percent increasing to 19 percent early in the
evening, then increasing to 56 percent late in
the evening increasing to 77 percent overnight
decreasing to 41 percent.
Chance of pcpn......90 percent.
Chance of thunder...10 percent.
Min temperature.....Around 42.
Max humidity........89 percent.
Wind (20 ft)........South winds around 12 mph shifting to the
southwest around 11 mph early in the morning.
Mixing height.......900 ft AGL.
Transport winds.....South 13 to 21 mph shifting to the southwest 15
to 16 mph after 3 am.
Smoke dispersal.....Good (93600 knot-ft) early in the evening
decreasing to poor (11100 knot-ft) late in the
night.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........57 74 86 90 91 92 93 93 83 77 74 57
Weather cov..... SCH CHC CHC LKY LKY DEF DEF LKY CHC CHC
Weather type.... RN RN RN RN RN RN RN RN RN RN
Tstm cov........
CWR.............0 20 20 20 60 60 60 80 80 80 40 40
Chc of pcpn (%).10 10 20 30 40 60 70 90 80 60 50 40
Chc of thdr (%).0 10 10 10 10 10 10 10 10 10 0 0
Temp............63 62 58 55 52 51 49 48 47 46 45 44
RH..............34 36 42 47 54 59 68 74 79 83 86 89
20 FT wind dir..S SE S S SE SE SE S S S S SW
20 FT wind spd..12 12 12 12 12 12 12 12 12 12 12 11
20 FT wind gust.18 18 18 18 19 19 19 19 18 17 17 17
Mix hgt (kft)...7.2 4.1 1.3 1.0 1.0 0.9 1.3 1.5 1.3 1.2 1.1 0.9
Transp wind dir.S SE SE SE SE S S S S SW W SW
Transp wind spd.15 16 15 17 21 15 15 15 14 13 15 16
Dispr kt-ft/1K..94 57 17 15 19 11 17 19 16 13 14 13
.TUESDAY...
Sky/weather.........Mostly sunny. Chance of rain.
CWR.................41 percent decreasing to 0 percent.
Chance of pcpn......40 percent.
Chance of thunder...4 percent.
Max temperature.....Around 56.
Min humidity........47 percent.
Wind (20 ft)........West winds 11 to 12 mph increasing to 13 to 19
mph with gusts to around 26 mph in the late
morning and afternoon.
Mixing height.......6800 ft AGL.
Transport winds.....West 16 to 24 mph increasing to 26 to 28 mph in
the afternoon.
Smoke dispersal.....Poor (11700 knot-ft) early in the morning
increasing to good (90400 knot-ft) in the
afternoon increasing to very good (113300
knot-ft) early in the morning increasing to
excellent (163100 knot-ft) in the afternoon in
the afternoon.
TIME (CDT) 6 AM 9 AM NOON 3 PM
Sky (%).........45 37 33 44
Weather cov.....CHANCE CHANCE CHANCE CHANCE
Weather type....RAIN RAIN RAIN RAIN
Tstm cov........
CWR.............40 0 0 0
Chc of pcpn (%).30 40 40 30
Chc of thdr (%).0 0 0 0
Temp............43 44 51 54
RH..............89 86 67 51
20 FT wind......SW 11G15 W 13G20 W 17G25 W 19G26
Mix hgt (ft)....900 1600 4000 6200
Transport wind..SW 16 W 18 W 26 W 28
Dispr kt-ft/1K..12 26 90 148
$$
Forecaster...JOHNSON
Requested by...Jason Wagner
Type of request...PRESCRIBED
.TAG 2511135.0/BIS
.DELDT 04/21/25
.FormatterVersion 2.0.0
.EMAIL jason_wagner@fws.gov